LA88.3

ICD-11 MMS 2026-01

Congenital left ventricular outflow tract obstruction

Description

A congenital cardiac condition in which the flow through the left ventricular outflow tract (proximal to the valve[s] guarding the outflow from the left ventricle) is blocked or impeded. This code should not be used for obstruction immediately under the arterial valve such as subaortic stenosis due to fibromuscular shelf or tunnel.

Index terms

  • Congenital left ventricular outflow tract obstruction
  • Congenital left ventricular outflow tract obstruction due to atrioventricular valve

Exclusions from above levels

  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LA88.0 – Congenital right ventricular outflow tract obstruction
  • LA88.1 – Double chambered right ventricle
  • LA88.2 – Tetralogy of Fallot
  • LA88.4 – Ventricular septal defect
  • LA88.Y – Other specified congenital anomaly of a ventricle or the ventricular septum
  • LA88.Z – Congenital anomaly of a ventricle or the ventricular septum, unspecified

Foundation entity

Congenital left ventricular outflow tract obstruction – http://id.who.int/icd/entity/567908339

Part of: LA88: Congenital anomaly of a ventricle or the ventricular septum › 20: Developmental anomalies